package com.shangxia.monomer.common.util.beanUtil;

import lombok.NonNull;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;

import javax.validation.constraints.NotNull;
import java.util.HashSet;
import java.util.Set;

/**
 * @ProjectName: monomer
 * @ClassName: BeanUtil
 * @Time: 2021/7/18
 * @Author: zhouy
 * @Description:
 * @Experience:
 */

@Slf4j
public class BeanUtil {

    public static void copyWithOutNull(@NotNull Object source, @NotNull Object target) {
        BeanUtils.copyProperties(source, target, getNullPropertyNames(source));
    }

    public static void copy(@NotNull Object source, @NotNull Object target) {
        BeanUtils.copyProperties(source, target);
    }

    public static void copy(@NotNull Object source, @NotNull Object target, String... ignoreProperties) {
        BeanUtils.copyProperties(source, target);
    }

    public static String[] getNullPropertyNames(Object source) {
        final BeanWrapper src = new BeanWrapperImpl(source);
        java.beans.PropertyDescriptor[] pds = src.getPropertyDescriptors();
        Set<String> emptyNames = new HashSet<String>();
        for (java.beans.PropertyDescriptor pd : pds) {
            Object srcValue = src.getPropertyValue(pd.getName());
            if (srcValue == null) {
                emptyNames.add(pd.getName());
            }
        }
        String[] result = new String[emptyNames.size()];
        return emptyNames.toArray(result);
    }
}
